Door-closer.



W. W. BJORLING.

. DOOR OLOSER. APPLICATION FILED MAR. 25, 1909. 941,907. Patented Nov.30, 1909.

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amenfoz tirrnn s'rrns PATENT rare WERNER W. BJOBLING, OF DUlVIONT, NEWJERSEY.

DOOR-CLOSER.

T 0 all whom it may concern:

Be it known that I, VERNER TV. BJoRLINe, a subject of the King ofSweden, Gustaf V., residing at Dumont, in the county of Bergen and Stateof NewJersey, have invented certain new and useful Improvements inDoor-Closers, of which the following is a specification.

This invention relates to new and useful improvements in door closers,and has for its primary object to provide a device of this class whichwhile extremely simple and inexpensive in construction is highlyefficient and durable in operation.

Another object is to provide spring casings countersunk in the door jamband the opposed edge of the door so that when the door is closed thedevice will be entirely concealed from view.

A further object is to provide improved means for removably securing theends of the spring in said casings.

With these and other objects in View the present invention consists inthe combination and arrangement of parts as will be hereinafter morefully described and particularly pointed out in the appended claims, itbeing understood that changes in the specific structure shown anddescribed may be made within the scope of the claims, without departingfrom the spirit of the invention.

In the drawings forming a part of this specification, and in which likenumerals of reference indicate similar parts in the several views,Figure 1 is a side elevation of a door and door frame, the door beingpartially opened and my improved closure shown thereon. Fig. 2 is ahorizontal section on line 2-2 of Fig. 1. Fig. 3 is a detail perspectiveview ofone of the casings showing the manner of securing the ends of thespring therein.

Referring to the drawings, 1 indicates a door and 2 the door frame inwhich are provided the recesses 3 and 4 respectively. These recesses areformed in the hinged edges of the door and frame, and are preferablycentrally located between the upper and lower edges thereof and receivethe spring casings 5, which are formed integral with Specification ofLetters Patent.

Application filed March 25, 1909.

Patented Nov. 30, 1909.

Serial No. 485,774.

a substantially rectangular flange 6 which is counter-sunk and securedin the opposed edges of the door and frame by means of the screws 7. Thecasings are bifurcated for the greater portion of their length as shownat 8 and are provided with semi-circular notches 8 in their ends to formbearings for the transversely extending pins 9. A spiral spring 10 hasits ends removably secured to said pins. The tension of the spring isgreat enough when the door is closed to prevent the pins becomingunseated from the notches 8. The spring 10 is preferably formed of heavysteel wire and as it is easily removed from the casings, a spring ofgreater or less tensional strength may be used according to the weightof the door.

It will be noted that I employ but one spring disposed within thecasings which are in turn located within the door and door jamb inhorizontal alinement with each other, thus providing a closer which isentirely concealed from view, there being no protruding extensions todetract from the appearance of the door. My invention is moreover verysimple and inexpensive in construction and is easily attached in itsoperative position by any person of average intelligence.

The casings would preferably be formed of heavy cast iron or steel butit will be obvious that many other materials might be found equally asdesirable under varying conditions.

And having thus described my said invention, what I claim as new anddesire to secure by United States Letters Patent is 1. The combinationwith a door and door frame, of mortises in the opposed edges of saiddoor and frame, tubular casings secured in said mortises, said casingsbeing formed with rectangular flanges upon one end thereof, and opposedrecesses formed in the ends of said casings, transversely extending pinsseated in said recesses, and a retractile spring disposed within saidcasing having its end removably secured to said pin.

2. A door closer comprising oppositely disposed tubular casings providedon one of their ends with rectangular flanges, the

greater portions of said casings being bifur- In testimony whereof Iafiix my signature, cated, the blfurcated ends of SELld casings inpresence of two wltnesses. havin oppositely disposed recesses therein aERNER B RLIN retractlle spring disposed Within SZLld cas JO G lngs andpins seated 111 said recesses and hav- Witnesses: ing the ends of thespring engaged there- BENJAMIN J. WVI-IITTAKER,

With. FRANK HILL.

